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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Sumberdaya Akuatik Indopasifik
Imanuel M. Thenu
Politeknik Perikanan Negeri Tual
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Environmental Science Library & Information Science

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PEMETAAN PERUBAHAN EKOSISTEM WILAYAH PESISIR KECAMATAN DULLAH UTARA KOTA TUAL Imanuel M. Thenu; Marvin M. Makailipessy
Jurnal Teknologi Perikanan dan Kelautan Vol 8 No 1 (2017): MEI 2017
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4063.752 KB) | DOI: 10.24319/jtpk.8.39-48

Abstract

Tingginya aktivitas pemanfaatan serta kurangnya informasi dan data tentang ekosistem sebagai acuan dasar pengelolaan di wilayah pesisir Kecamatan Dullah Utara. Penelitian ini bertujuan mengetahui potensi dan sebaran ekosistem terumbu karang dan lamun serta menganalisis laju perubahannya dalam periode waktu tertentu berdasarkan hasil interpretasi citra. Berdasarkan hasil analisis citra akan diketahui luasan dan sebaran ekosistem, kemudian dibandingkan dengan beberapa citra pada periode waktu lampau untuk menganalisis laju perubahannya. Penelitian ini dilakukan di wilayah pesisir Kecamatan Dullah Laut Kota Tual. Metode analisis citra yang digunakan adalah teknik transformasi depth invariant indeks dan klasifikasi terbimbing. Hasil interpretasi citra Landsat 8 tahun 2014 menunjukkan luasan terumbu karang sebesar 1.934,82 ha sedangkan luasan lamun sebesar 614.43 ha. Pada tahun 2004 ke 2009 terjadi peningkatan luas ekosistem terumbu karang sebesar 133.56 Ha (4.78%), sedangkan ekosistem lamun terjadi peningkatan luas sebesar 84.69 ha (14.58%). Pada tahun 2009 ke 2014 ekosistem terumbu karang mengalami penurunan luas sebesar 992.16 ha (33.89%) sedangkan untuk ekosistem lamun mengalami penurunan luas sebesar 51.21 ha (7.69%).
Efek Perbedaan Penggunaan Umpan Terhadap Hasil Tangkapan Pancing Ulur Di Desa Fidatan Pulau Ubur Kota Tual Julianus Notanubun; Imanuel M. Thenu; Yuliana Anastasia Ngamel; Tuti Tanarubun
Jurnal Sumberdaya Akuatik Indopasifik Vol 7 No 4 (2023): November
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Hand line is a type of fishing gear that is active and environmentally friendly and is often used by traditional fishermen to catch fish with high economic value. The right bait is one of the factors for maximizing catches. Fishermen around the village of Fiditan, Jellyfish Island, Kota Tual generally use various kinds of bait, such as Momar fish (Decapterus sp), Sikuda fish (Letrinus lenca) and Nipah worms (Namalycastis). This research was held in November – December 2022. The objectives are: to know the composition of hand line catches with different baits and to determine the type of bait that gives the most catches. This research is expected to provide information and knowledge to fishermen about hand line fishing gear units using different baits. Data analysis used a randomized block design, with baits used were Momar fish, Sikuda fish and Nipah worms. During the study, a total of 346 fish were caught consisting of Sikuda fish (Letrinus lenca) with a total of 294 fish (85.5%), followed by Gora fish (Lutjanus carponotatus) 25 individuals (7.33%), Sand-sand fish ( Taeniura ymma) 20 individuals (1.16%) and the smallest catch was Gace fish (Lutjanus malabericus) with a total of 1 fish (0.29%). The results of the analysis of variance showed that the Fcount for the treatment (8.66) was greater than the Ftable (0.05); 14:2) (88.5) so statistically H0. This means that the difference in the use of bait has a very significant effect at the level of ά = 0.05 on the catch. The BNT test results also showed differences in the value of each bait so that it was concluded that the three baits used by fishermen had a significant difference in the catch obtained with Sikuda bait with the highest yield, followed by Nipah worm and Momar fish bait.
Co-Authors Makailipessy, Marvin Mario Notanubun Julianus Tuti Tanarubun Yuliana Anastasia Ngamel